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Finding the Fourth Proportional to 118,401.40, 177,623.70 and 48,287.80

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Solution

The fourth proportional to 118,401.40, 177,623.70 and 48,287.80 is: 72,440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,401.40 : 177,623.70 = 48,287.80 : x
  2. Step 2: Convert to fraction form
    118,401.40/177,623.70 = 48,287.80/x
  3. Step 3: Cross multiply
    118,401.40x = 177,623.70 × 48,287.80
  4. Step 4: Simplify right side
    118,401.40x = 8,577,057,700.86
  5. Step 5: Solve for x
    x = 8,577,057,700.86/118,401.40
  6. Step 6: Final answer
    x = 72,440.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.